Bear with me as I only faintly grasp this myself:
Javascript does not have classes. It has objects. To replicate a class, you create an object. To create "instances" of that "class", you duplicate that object. There are a few ways to do this. One is to create a function that returns an object, then call the function, like so:
function Car(brand, year) {
return {
brand: brand,
year: year
}
}
var modelT = Car("Ford", 1900); //or whenever the model T came out
modelT.brand == "Ford" //true
modelT.year == 1900; //true
Another way is to create an object that is a function and create a "new" of that object. The catch is you have to use `new`, and that's rather misleading.
var Car = function(make, year) {
this.make = make;
this.year = year;
};
var x = new Car("ford", 1990);
//same tests hold true from earlier example
In my opinion the best way is to use `Object.create` because it best represents what's actually happening:
var Car = (function() {
var self = Object.create({}, {
make: {
value: "Ford"
}
year: {
value: 1900
}
});
return self;
})();
var modelT = Object.create(Car, {
make: {
value: "Model T"
},
year: {
value: 1901
}
});
Unfortunately, this is extremely cumbersome.
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